forked from mirrors/gecko-dev
f04f785725
This patch adds the ability to run SingletonEventManager handlers in different modes: sync, async, raw (no exception handling, arg cloning, or asynchrony), or asyncWithoutClone. When you call the handler, you're required to specify which variant you want. Existing uses of SingletonEventManager are all converted to async calls. Note that some of them were previously synchronous, but it didn't appear to be necessary. Also added a callOnClose for SingletonEventManager when the last listener is removed. MozReview-Commit-ID: ATHO97dWf3X --HG-- extra : rebase_source : 43988ee453e965e1c591b1c64603c22f5a103cff
104 lines
3.5 KiB
JavaScript
104 lines
3.5 KiB
JavaScript
/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
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/* vim: set sts=2 sw=2 et tw=80: */
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"use strict";
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Cu.import("resource://gre/modules/ExtensionUtils.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "ExtensionSearchHandler",
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"resource://gre/modules/ExtensionSearchHandler.jsm");
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var {
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SingletonEventManager,
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} = ExtensionUtils;
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// WeakMap[extension -> keyword]
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let gKeywordMap = new WeakMap();
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/* eslint-disable mozilla/balanced-listeners */
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extensions.on("manifest_omnibox", (type, directive, extension, manifest) => {
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let keyword = manifest.omnibox.keyword;
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try {
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// This will throw if the keyword is already registered.
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ExtensionSearchHandler.registerKeyword(keyword, extension);
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gKeywordMap.set(extension, keyword);
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} catch (e) {
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extension.manifestError(e.message);
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}
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});
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extensions.on("shutdown", (type, extension) => {
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let keyword = gKeywordMap.get(extension);
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if (keyword) {
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ExtensionSearchHandler.unregisterKeyword(keyword);
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gKeywordMap.delete(extension);
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}
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});
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/* eslint-enable mozilla/balanced-listeners */
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extensions.registerSchemaAPI("omnibox", "addon_parent", context => {
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let {extension} = context;
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return {
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omnibox: {
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setDefaultSuggestion(suggestion) {
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let keyword = gKeywordMap.get(extension);
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try {
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// This will throw if the keyword failed to register.
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ExtensionSearchHandler.setDefaultSuggestion(keyword, suggestion);
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} catch (e) {
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return Promise.reject(e.message);
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}
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},
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onInputStarted: new SingletonEventManager(context, "omnibox.onInputStarted", fire => {
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let listener = (eventName) => {
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fire.sync();
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};
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extension.on(ExtensionSearchHandler.MSG_INPUT_STARTED, listener);
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return () => {
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extension.off(ExtensionSearchHandler.MSG_INPUT_STARTED, listener);
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};
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}).api(),
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onInputCancelled: new SingletonEventManager(context, "omnibox.onInputCancelled", fire => {
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let listener = (eventName) => {
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fire.sync();
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};
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extension.on(ExtensionSearchHandler.MSG_INPUT_CANCELLED, listener);
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return () => {
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extension.off(ExtensionSearchHandler.MSG_INPUT_CANCELLED, listener);
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};
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}).api(),
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onInputEntered: new SingletonEventManager(context, "omnibox.onInputEntered", fire => {
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let listener = (eventName, text, disposition) => {
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fire.sync(text, disposition);
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};
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extension.on(ExtensionSearchHandler.MSG_INPUT_ENTERED, listener);
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return () => {
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extension.off(ExtensionSearchHandler.MSG_INPUT_ENTERED, listener);
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};
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}).api(),
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},
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omnibox_internal: {
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addSuggestions(id, suggestions) {
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let keyword = gKeywordMap.get(extension);
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try {
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ExtensionSearchHandler.addSuggestions(keyword, id, suggestions);
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} catch (e) {
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// Silently fail because the extension developer can not know for sure if the user
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// has already invalidated the callback when asynchronously providing suggestions.
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}
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},
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onInputChanged: new SingletonEventManager(context, "omnibox_internal.onInputChanged", fire => {
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let listener = (eventName, text, id) => {
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fire.sync(text, id);
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};
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extension.on(ExtensionSearchHandler.MSG_INPUT_CHANGED, listener);
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return () => {
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extension.off(ExtensionSearchHandler.MSG_INPUT_CHANGED, listener);
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};
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}).api(),
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},
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};
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});
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